12101785240 has 128 divisors (see below), whose sum is σ = 29464585920. Its totient is φ = 4456857600.

The previous prime is 12101785237. The next prime is 12101785243. The reversal of 12101785240 is 4258710121.

It is an interprime number because it is at equal distance from previous prime (12101785237) and next prime (12101785243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101785243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6501910 + ... + 6503770.

Almost surely, 2^12101785240 is an apocalyptic number.

12101785240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12101785240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14732292960).

12101785240 is an abundant number, since it is smaller than the sum of its proper divisors (17362800680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12101785240 is a wasteful number, since it uses less digits than its factorization.

12101785240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The spelling of 12101785240 in words is "twelve billion, one hundred one million, seven hundred eighty-five thousand, two hundred forty".